Character mistake: At one point in the show, Roger throws a bucket of water (in disguise as Scotch Bingeington) on Francine claiming "Wet T-Shirt Contest!" Francine looks disgusted when Roger states "Eh, give this one a four" to the guy judging the contest, then says to Francine "Don't feel bad, you've had three kids." Francine replies "I've had two." and Roger gasps and puts a consoling hand on Francine's shoulder. This is wrong because Francine has birthed four children. She previously gave birth to Bailey (Hayley's twin), and Greg and Terry's baby in Season 3 Episode 7 "Surro-Gate." (00:14:15)
Tearjerker - S3-E10
Character mistake: When Tearjerker is describing his evil plot to Stan, he says he auditioned for a role in Monster's Ball in 2002. Monster's Ball was released in 2001.
Chosen answer: It is just the decision of the creators to do so.
MasterOfAll